The St. Louis Rams and the CVC headed to arbitration over the Edward Jones Dome in June.

Negotiations began in February with the CVC proposing $124 million in Dome improvements.

The Rams countered with a much broader plan that city leaders say could cost $700 million.

The CVC rejected that plan, telling the Rams that their proposal, "guts and demolishes most of the current facility, eliminates significant improvements made with public money, and proposes virtually a new facility."

Under the terms of the lease, if the Dome is not among the top tier of NFL facilities the Rams will be free to leave after the 2014 season.